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‎04-07-2019 03:31 PM

HP Recommended
Operating System: Microsoft Windows 7 (64-bit)

Hi i have a problem with my hp designjet 500ps when i do alignment to the prenterhead it stops at the meddle of the prossce with 79:04 code

And with re power the prenter its work but the head never align and that effecte the quality of the prenter

Plz any one have a solution for me

1 person had the same question
1 ACCEPTED SOLUTION

Accepted Solutions

‎04-13-2019 12:10 PM

HP Recommended

Here are possible causes:

1. optical encoder strip is dirty and cannot be read. This strip runs the length of the carriage and has a microfine grid that can become polluted with ink mist. Take a cup of water, add a small amount of isopropyl alcohol (less than 10% by volume.) Moisten a soft cloth and gently clean the strip.

2. Line sensor is dirty. This is difficult to deal with as you need to disassemble the printer to get to it. 

 

also make sure that you have the current firmware installed on the printer.

If you find the information provided useful or solves your problems, help other users find the solution easier by giving kudos and marking my post as an accepted solution.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.



View solution in original post

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3 REPLIES 3

‎04-13-2019 12:10 PM

HP Recommended

Here are possible causes:

1. optical encoder strip is dirty and cannot be read. This strip runs the length of the carriage and has a microfine grid that can become polluted with ink mist. Take a cup of water, add a small amount of isopropyl alcohol (less than 10% by volume.) Moisten a soft cloth and gently clean the strip.

2. Line sensor is dirty. This is difficult to deal with as you need to disassemble the printer to get to it. 

 

also make sure that you have the current firmware installed on the printer.

If you find the information provided useful or solves your problems, help other users find the solution easier by giving kudos and marking my post as an accepted solution.
I am a volunteer, offering my knowledge to support fellow users, I do not work for HP nor speak for HP.



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‎04-14-2019 03:50 AM

HP Recommended

Okay i will try it and i know how to assemble the prenter

Where can i find the line sensor ? To clean it

Inside the head cartridge ?

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‎12-24-2019 01:58 PM

HP Recommended

Have HP ENVY 5530  I seem to be having alignment issues.  In the the FIRST page printed after installation of an ink cartridge is OUT OF ALIGNMENT, when the printer SCANS that page, it keeps the BAD alignment.  Any solutions?

 

If I have to take this apart, any videos on how to DO this?  Thanks so much!!

CatFree Bogalusa
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